JPH0684681A - Apparatus for removal of insulating material of circular wire and method for operating of insulating-material-removal and wire- guide unit - Google Patents

Abstract

PURPOSE: To provide a device for removing the insulating material of a round wire varnished and/or plastic insulated, and a method for operating the device. CONSTITUTION: An insulating material removing unit 10 forms together with a wire guide unit 30 on a pair of common hollow supporters 52, 52' corresponding to respective winding positions of a coil winder 50, an insulating material removing wire guiding units 10, 30 assembled into the wire guide unit 30 while these units having an electronic motor 14 with a hollow rotor axle 16 are free programmable along the X-, Y-, Z axes. Besides, an interval L can be fixedly set up corresponding to an electric coil 42 to be wound up between the center of a planing tool 28 and the wire guide outlet 30' so that a wire section Lx capable of changing the length between the wire La removed of the insulating material and the connecting part 44 of the electric coil 42 may be fed so as to bring the wire La removed of the insulating material into contact with the connecting part 44 for the composition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing an insulating material of an electric conductor, particularly a circular wire, which is supplied to a connecting portion of an electric coil of a winding machine through a wire guiding device and a wire guiding device. And a method of operating this device.

[0002]

BACKGROUND OF THE INVENTION A device for removing the insulation of varnish-insulated circular wires, known from DE-A 3515223 A1, is drivable by means of a drive having a rotary shaft and a tool carrier connected to it. It has a tool that rotates to relieve tension around the wire. The rotary shaft can have a rotary bearing for the tool support, via which the tool, in particular the three cutters, is arranged on the wire diameter. An adjusting cone that slides in the axial direction is arranged on the shaft. This adjusting cone supports a rotatable tool carrier at the end opposite the tool. Attached to the adjusting cone is a delivery mechanism with a pneumatic cylinder, which carries the radially deployable tool to a position predetermined by the wire diameter. The casing of the insulating material removing device has a slider. The slider is slidable relative to a stationary device, for example a winding machine.

Insulating material removing devices which can also be used as a twisting device and which have one cutter head are also known, the cutter head being crowned on the drive shaft, the cutter being based on the centrifugal force exerted on the wire diameter. It is moved closer by rotating the cutter head. Insulation removal is achieved by overlapping rotation and longitudinal movement of the cutter relative to the wire.

This type of insulation removal device is designed as a separate add-on device, which is arranged on an additional support in a multi-winding machine for electric coils, which support is an insulating material. It is slidable relative to a second support of the winding machine, which comprises a wire guide with a remover.

Thus, a large distance is required between the insulating material removing device and the wire guider for guiding the wire to the connecting portion of the electric coil. In that case, it is necessary to take into account the variable wire diameter which can be changed within a permissible range and the structure of different windings. Therefore, when the wire guide is long, the minimum and maximum allowable values may be added to affect the coil diameter.
Insulation-removed wire strips that are incorrectly delivered to the connection can result in electrically defective coils.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to install an insulating material removing device for circular wire, which is known per se, in a coil winding machine with a particularly fine wire section, and to take into consideration the normal manufacturing tolerance of the wire. The purpose is to compensate for the positioning of the wire section with the insulation removed in the corresponding connection of the electric coil.

[0007]

The above-mentioned problems can be solved by the following constitution of the present invention. That is, the insulating material removing device constitutes at least one insulating material removing / wire guiding device unit incorporated in the coil winding machine together with the wire guiding device on the common support, and includes the center of the planing tool and the wire guiding device outlet. Having a distance which is fixedly set corresponding to the electric coil to be wound between them, and which has a configurable insulation-removing wire piece between the wire start with the insulation removed and the corresponding connection of the electric coil The solution is to be able to deliver variable wire sections.

[0008]

The present invention will be described in more detail with reference to the drawings showing the embodiments. The insulating material removing / wire guiding unit 10, 30 shown in FIGS. 1, 2 and 3 is disposed on a two-part support 52, 52 ′ of the coil winding machine 50, for example, 6
It has individual winding positions. The supports 52, 52 'extend over the entire length of the winding position, and the insulating material removal / wire guider unit 10, 30 is attached to each winding position. FIG. 1 shows a winding position at the right end of the winding machine 50. The upper portion 52 of the support is hollow and is connected via a branch pipe 54 to a device (not shown) for sucking the remaining insulating material from which the insulating material has been removed. The insulating material remover 10 is disposed on the upper portion 52 of this support. The insulation removal head 20 is mounted on the hollow rotor shaft 16 of the electric motor 14 and secured by a tightening screw 22. Especially the cutter 2 which rotates around the wire 40
An insulating material removing head 20 having at least three planing tools such as No. 8 has a tilting lever 26. These tilting levers can be rotated at a rotation support point 27 and serve as a cutter holder. The proximity of the cutter 28 to the wire diameter is provided by the centrifugal force that causes the insulation removal head 20 to rotate and is limited by the set screw 24.

In the lower part 52 'of the support, a wire guide 30 is arranged by means of a holding member 32, the support part 5 having insulation removal and wire guide units 10, 30.
2,52 'can be freely programmed along the X, Y, Z axes.

The distance L between the center of the cutter 28 and the wire guide outlet 30 'can be firmly set according to the size of the coil 42 to be wound. Wire beginning A
Or the corresponding connecting portion 4 of the wire end E and the coil 42
The length of the wire strip La from which the insulating material is to be removed, which serves for contact with 4, 46, is likewise programmable.

Wound wire 4 formed as a round wire
0 is passed through the wire through hole 12 and the hollow rotor shaft 16 of the electronic motor 14, and the insulating material removing head 2 between the cutter 28 is provided.
A small tubular wire guide 3 guided in a hollow shaft 18 of 0
The corresponding connecting portions 44, 4 of the electric coil 42 by 0
You will be guided to 6. The relative movement of the insulating material removal head 20 rotating in the direction opposite to the wire traveling direction causes the coil 42 to move.
The wire piece La, which is to be insulated, is stripped of the insulating material when is stationary.

A wire section Lx1 in which the length between the wire piece start end from which the insulating material has been removed at the start of winding and the wire holder 34 (parking pin) provided on the substrate 58 of the winding machine 50 can be changed. Is preliminarily set so that the wire piece La from which the insulating material has been removed abuts on the corresponding connecting portion 44, 46 of the electric coil 42. In FIG. 1, the winding start end A is fixed to the corresponding connecting portion 44 arranged in the radial direction, in particular the residual wire 36 held in the wire holder 34 after being twisted has already been cut off. The wire section Lx of variable length after the end of coiling in FIGS. 1 and 2 is programmed such that the subsequent strip of wire La from which the insulating material has been removed abuts the connecting portion 44. The length Lx of the wire section, which is then changed by the changed coil diameter D, is compensated for by the return of the insulation removal and wire guide unit 10, 30 in the wire running direction.

1 and 2 show the coil 42 at a predetermined stop position. In this stop position, when the insulating material remover 10 rotates at the same time, the insulating material is already removed from the wire piece La by the returning movement of the insulating material removal / wire guide unit 10, 30. The wire section Lx changed by further rotating the coil 42 from the stop position is
The wire strip La, which has been wound around 2 and shown in FIG. 3 and from which the insulating material has been removed, comes into precise contact with the connecting portion 44, and at the same time, has a predetermined number of turns of the coil 42. The wire piece La from which the insulating material has been removed is subsequently fixed to the connecting portion 44 by, for example, twisting.

FIG. 4 shows an electric coil 42 having axially arranged connecting portions 46. As in the case of FIG. 1, by winding the wire section Lx, the length of which can be changed by further rotating the coil 42 from the stop position, the wire strip La from which the insulating material has been removed corresponds to the wire end E. The wire guide 30 is brought into contact with the portion 46, and then the wire guide 30 is tilted at a predetermined angle, particularly 90 degrees, and the wire piece La from which the insulating material is removed is fixed to the connection portion 46. The rest of the wire sandwiched in the wire holder 34 has already been discharged.

[0015]

Since the insulating material remover is integrated with the wire guider and one unit, the relative movement between the insulating material remover and the wire guider required otherwise is not necessary. As a result, the cause of this drawback is eliminated. The length of the wire guide between the stripped wire strip end and the corresponding connection of the coil, which was previously required, is reduced to about 1/5 to 1/6, which reduces the winding time. Becomes significantly shorter. This is because the removal of the insulating material and the feeding of the wire piece from which the insulating material has been removed to the coil connecting portion are performed even when the winding speed is reduced.

The change of the coil diameter during winding, in particular the correct attachment of the stripped wire to the corresponding connection of the coil, is achieved by computer control of the stripping and wire guide unit in the running direction of the wire. Accurately compensated by sliding.

The electrical coil, in particular the radial or axial attachment of the connecting parts to the coil, so that different lengths of wire between the wire guide / outlet and the connecting part are insulation removal / wires It can be accurately grasped via the freely programmable X-, Y- and Z-axes of the guide unit.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an insulation removal and wire guide unit of the present invention incorporated in an electric coil winding machine having connecting portions arranged in a radial direction.

FIG. 2 is a detailed view of a portion of FIG.

FIG. 3 is a detailed view of a portion of FIG.

FIG. 4 is a vertical cross-sectional view of an insulating material removing / wire guiding unit when winding a coil having a connecting portion arranged in the axial direction.

[Explanation of symbols]

10, 30 Insulation material removal / wire guide unit 10 Insulation material removal device 12 Wire through hole 14 Electronic motor 16 Rotor shaft 18 Hollow shaft of insulation material removal head 20 Insulation material removal head 22 Tightening screw 24 Stop screw 26 Tilt lever 27 Rotation Support point 28 Planing tool 30 Wire guide 30 'Wire guide / outlet 32 Wire guide retainer 34 Wire retainer 36 Residual wire 40 Circular wire 42 Coil 44 Connection portion arranged radially with respect to coil 46 On coil Connection parts arranged axially with respect to each other 50 Winding machine for electric coil 52, 52 'Supporting part for insulating material removing / wire guider unit 52 Hollow support part having branch pipe for suction device 52' Supporting part for wire guider 54 Branch pipe 58 Winding machine substrate D Coil diameter L Cutter center and wire guide / outlet Spacing La Insulation removal wire strip Lx Insulation removal wire strip Length changeable wire segment between start end and corresponding coil connection Lx1 Wire segment between wire retainer and connection

Claims (2)

[Claims] 1. An apparatus for removing the insulation of a varnish and / or a plastic-insulated circular wire by means of an insulation remover having at least three planing tools drivably rotating about a wire. The shaving tool is adjusted to the respective wire diameter and in a device provided with a wire guiding device and one wire guiding device for winding the electric coil, the insulation remover (10) comprises a coil winding machine (50). Insulation removal and wire guider unit (10, 30) integrated inside the coil winder with wire guider (30) on one common hollow support (52, 52 ') for each winding position of Forming an electric motor (14) having a hollow rotor shaft (16),
Freely programmable along the X-, Y- and Z-axes to match the electric coil (42) to be wound between the center of the planing tool (28) and the wire guide / exit (30 '). The distance (L) can be fixedly set, and the wire piece / starting end (La) from which the insulating material has been removed and the electric coil (42)
The wire section (Lx) of which the length can be changed between the connection section (44, 46) and the wire piece (La) from which the insulating material has been removed is brought into contact with the connection section (44, 46). An apparatus characterized by being configured to: 2. A method of operating an insulation removal / wire guide unit (10, 30) according to claim 1, wherein a wire is passed from a wire passage hole (12) to a hollow rotor shaft (16) of an electronic motor (14). In the hollow shaft (18) of the insulation remover (10) between the planing tools (28) and through the wire guiding device (30) to the corresponding connecting portions (44, 46) of the electric coil (42). Delivered and determined according to the coil (42) that winds the distance (L) between the center of the planing tool (28) and the wire guide / exit (30 '), and rotates in the direction opposite to the wire traveling direction. The programmable, insulated wire length (La) of insulation is removed when the coil (42) is stationary by the relative movement of the insulation removal device (10) to remove the remainder of the insulation. Wax from which the insulating material has been removed by suction from the branch pipe (54) A wire piece (La) from which a subsequent insulation material has been removed by programming a wire portion (Lx) having a variable length between the end piece (La) and the respective connecting portion (44, 46). In front of the connecting portion (44, 46) and varying wire section length (Lx) according to the increasing coil diameter (D) to remove the insulation / wire guide unit wire (10, 30). Compensating by reverse return to the direction and subsequently fixing the strip of wire (La) from which the insulation has been removed to the corresponding connection part (44, 46),
The wire section (Lx1) is fixed to the wire retainer (34) at the beginning of winding, and the length of the wire section (Lx1) is set as follows, that is, the wire piece (La) from which the insulating material has been removed is connected to the wire start end. Corresponding connection parts (44, 4) as part (A)
6) The wire section (L) that can be changed when winding the electric coil (42) is preliminarily set so as to come into contact with 6), fixed to this starting end portion, and then the wire section (Lx1) is cut off.
x) is wound onto this coil by the subsequent rotation of the coil (42) and the subsequent strip of wire (La) from which the insulation has been removed is arranged in a radially arranged connection part as the wire end part (E). (44) and then fixed to this end by a wire guide (30) or continuously when winding an electric coil (42) having an axially arranged connecting part (46) A method characterized in that the wire guide (30) is tilted at a predetermined angle, in particular 90 degrees, and the wire strip (La) from which the insulating material has been removed is fixed to the connection part (46).